Brake-beam.



PATENTED AUG. 4, 1903.

VNo. 735,296.

H. PRIBS. v BRAKE BEAM.

APPLICATION FILED JUNE l?, 1903.

N0 MODEL.

Mnmmnum iIIlllllllllllllIIIUIIIV" min-2.!

A TTORNE UNITED STATES Patented August 4, 1903.

PATENT GFFICE.

BRAKE-BEAM.

SPECIFICATION fermingpatt of Lettere Patent No. 735,296, aetea August 4, 1903. `Application iiled J' une 12, 1903. Serial No. 161 ,154=.` (No model.)

To all whom it may concern:

Be it known that I, HERMAN PRIEs, a citizen of the United States, and a resident of Michigan City, county of Laporte, and State of Indiana, have invented certain new and useful Improvements in Brake-Beams, of which the following is a specification and which are illustrated in the accompanying drawings, forming a part thereof.

Thisinvention relates to that type of brakebeams which are in truss form, and its object is to render such beams stronger and lighter.

The invention consists in abeam of` this character having for its compression member a channeled bar of approximately uniformsize and shape in cross-section throughout its length, a tension member having its ends bent so as to liewithin the channeled bar,

`and heads having countersunk apertures within which the ends of the compression member are litted and through which the ends of the tension member pass, nuts being applied to the ends of the tension member so as to bear against the outer faces of the heads.

This construction .is illustrated in the accompanying drawings, in Which-j- Figure 1 is a side view of the brake-beam, partly in elevation and partly in section. Fig. 2 is a detail of the strut of the truss, the compression member being shown in crosssection; and Fig. 3 is a sectional View on the line 3 3 of Fig. 1.

The compression member 10 of the brakebeam is a' channeled bar vof substantially uniform size in cross-section throughout its length and may be of commercial rolled stock. Thetension member 11 is preferably a round rod and has its endsbent so as to bring them into alinement with the compression member, as shown at 16.

proximately the same as or may slightly ex? ceed, as shown, the depth of the channeled compression member. The strain resisted by the nuts 15 is by reason of the construction described transmitted centrally to the compression member, and hence the tendency of this member to buckle is much less than in the construction of the beam disclosed in the Patents No. 565,060, granted to Henry C. Williamson August 4, 1896, or N o. 565,879,

granted to John J. Casey August 18, 1896,

While the Weight or cost of the beam is not increased.

I claim as my inventionvIn a brake-beam in 4truss form, in combination, a pair of heads having countersunk apertures, a compression member in channel form throughout its length and having its ends fitted Within theapertures of the heads,

.a tension member having its ends bent to aline with the compression member and f1tted Within its channel and passing through the head-apertures, nuts applied to the ends of the tension member, and a strut interposed between the compression and tension members.

HERMAN PBIES. Witnesses:

GEO. P. ROGERS, SAMUEL J. TAYLOR. 

